E-Thirteen TRS Plus 10 Speed Cassette

Largest two cogs are precision machined from aluminum and locked onto a SRAM XD driver body, while the remaining eight steel cogs lock into place with a chain whip

Front cogs are shared on the 10 and 11sp versions and high wear parts are available individually which means replacing worn parts, or upgrading from 10-11sp is possible without buying a whole new cassette